There's the AutoBell scrubber, the Touchless/brushless car wash, then there's the old school car washes that have individual wash bays with different soaps and rinsing products dispensed through what looks like a low pressure pressure washer. Are these old school detergents pretty decent? I feel that a car can be washed much faster with the wand than the even older school method of a bucket with detergent and 6 sponges. Asking for a friend.